Finding the Fourth Proportional to 111,412.17, 153,739.15 and 65,466.95

Step by Step Solution

1. Step 1: Write the proportion equation
   111,412.17 : 153,739.15 = 65,466.95 : x
2. Step 2: Convert to fraction form
   111,412.17/153,739.15 = 65,466.95/x
3. Step 3: Cross multiply
   111,412.17x = 153,739.15 × 65,466.95
4. Step 4: Simplify right side
   111,412.17x = 10,064,832,313.73
5. Step 5: Solve for x
   x = 10,064,832,313.73/111,412.17
6. Step 6: Final answer
   x = 90,338.72